| A | B |
| impropriety (IM not + PROPER) | incorrect or inappropriate behavior |
| improvident (IM not + PRO forward + VID look) | without foresight; not looking ahead or down the road while making decisions |
| imprudent (IM not + PRUDENT) | unwise; not exercising good judgement; not careful in planning for the future |
| impudence | offensive bold behavior; insolent disrespect. |
| impunity (IM not + PUNISH) | freedom from punishment. |
| inanimate (IN not + ANIM mind) | lifeless; without a mind |
| incisive (IN in + CISE cut) | sharp; easily cutting into something (e.g., an incisive mind understands complex things quickly, cutting right in to what's important) |
| incoherent (IN not + CO together + HERE stick) | disjointed, such all all parts are not working together, creating confusion or awkwardness (e.g., incoherent speech or an incoherent argument) |
| indigent (IN not + DIGN worth or value) | poor |
| inexorable (IN not + EX out + ORB sphere) | inescapable; we are not able to get out of our life, our home, etc. |
| infallible (IN not + FALL + ABLE) | incapable of erring or making mistakes; god-like in wisdom or decision-making |
| infraction (IN in + FRACT break) | breaking (as in the rules) |
| ingratiate (IN in + GRAT pleasing) | to make one pleasing to others; to win the favor of other people |
| inherent (IN in + HERE stick) | something built-in; that which is part of the nature or essence of what something is |
| insatiable (IN not + SAT enough) | adj. That desires or craves immoderately or unappeasably. |
| insipid (IN not + SAPERE Latin for "taste") | tasteless; bland; without any interesting qualities; boring; dull |
| intercede (INTER between + CEDE go) | to go between, or to mediate; to enter in the midst of a conflict and help bring about a resolution |
| interdict (INTER between + DICT word) | to forbid; to prohibit; an official order or proclamation forbidding certain actions or behavior |
| interlocutor (INTER between + LOCU/LOQU talk) | one who takes part in a conversation; a person who asks questions; an interrogator |
| interpose (INTER between + POS put) | to put between |
| interregnum (INTER between + REG rule) | time between rulers |
| intervene (INTER between + VEN come) | to come between |
| intractable (IN not + TRACT pull + ABLE) | stubborn; resistant; not able to change another's mind |
| intransigent (IN not + TRANS across) | uncompromising; refusing to move from a taken position or attitude |
| intrepid | fearless; courageous; bold |